The original CM Security upgraded to the new Security Master Antivirus&VPN(by CM, Cheetah Mobile) and redefined the scope of Phone Security: protects not only your phone but also your privacy. Security Master Antivirus&VPN(by CM) introduced Intelligent Diagnosis to detect your phone status and advise the most needed solution, including Antivirus, Junk Clean, and Phone Booster (Battery Saver, and CPU Cooler) in time. All the necessary features to keep your phone safe & healthy.

★Intelligent DiagnosisOur famous big button design upgraded to intelligently diagnose your most needed solution. All solutions to keep your phone safe, clean, and optimized like a new one, including battery.

Junk Clean - Phone stores junk files automatically from time to time. Security Master Antivirus&VPN(by CM) detects this issue and frees storage when needed. One tap to clean cache & junk files at once. The smartest way to clean and optimize phone.

Phone Boost, Battery Saver, and CPU Cooler - Your phone can not have the best performance if it stays at a high temperature or high memory usage. Especially when charging battery and playing games, it watches out phone & battery and keeps your phone cool, fast, and saves more battery life.

★SafeConnect VPNSecurity Master Antivirus&VPN(by CM) presents the most easy-to-use free VPN, proxy & unblock solution. Apart from other VPN, SafeConnect VPN partners with “Hotspot Shield Free VPN Proxy” and was designed for everyone. SafeConnect VPN establishes a secured cyber environment as you need to block out hackers. With SafeConnect VPN, you can apply virtual location to enhance security and freely access favorite contents. Security Master Antivirus&VPN(by CM) now protects not only your device, but the protection extends to online data transmission to prevent leak of online banking information, private messages, and browsing history. (Will be available worldwide soon.)

★AppLockSecurity Master Antivirus&VPN(by CM) protects the privacy of apps by AppLock. You can lock anything you want to protect, such as Bluetooth & Wi-Fi switches, incoming calls, recent apps, settings, photos, WhatsApp, or any apps you choose. Furthermore, the preview of notifications can be also locked so that no one can see which apps you are using or who you are chatting with.With Applock, you can lock apps with a pattern, PIN code, or fingerprint. You can also customize the re-lock time to re-lock at device screen off so that no need to unlock each time you launch an app.Intruder Selfie - Security Master Antivirus&VPN(by CM) protects apps privacy from snoopers. If someone tries to unlock your app with a wrong password, a photo of the intruder will be taken and the intruder alert will be sent to you by e-mail. (Intruder Selfie for phone luck screen needs device administrator permission)Disguise cover - Security Master Antivirus&VPN(by CM) disguises lock screen so that no one is aware of you are using AppLock while keeping your secret & privacy safe. You can protect your privacy without your parents, partner, or children knowing.